WO2021147794A1

WO2021147794A1 - Frequency domain resource processing method, frequency domain resource configuration method and related device

Info

Publication number: WO2021147794A1
Application number: PCT/CN2021/072402
Authority: WO
Inventors: 刘进华
Original assignee: 维沃移动通信有限公司
Priority date: 2020-01-23
Filing date: 2021-01-18
Publication date: 2021-07-29
Also published as: JP7436685B2; JP2023511418A; CN113163491A; CN113163491B; EP4096326A1; US20220361174A1; KR20220129031A; EP4096326A4; BR112022014399A2

Abstract

Provided in the present invention are a frequency domain resource processing method, a frequency domain resource configuration method and a related device. The frequency domain resource processing method comprises: acquiring frequency domain configuration information which comprises at least one of configuration information of a guard band and configuration information of a frequency domain resource of a distribution unit (DU) of an IAB node; and carrying out information transmission according to the frequency domain configuration information.

Description

Frequency domain resource processing method, frequency domain resource configuration method and related equipment

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 202010076449.1 filed in China on January 23, 2020, the entire content of which is incorporated herein by reference.

Technical field

The present invention relates to the field of communication technology, in particular to a frequency domain resource processing method, a frequency domain resource configuration method and related equipment.

Background technique

The Integrated Access Backhaul (IAB) system is a technology that began to develop standards in the sixteenth version (Release 16, Rel-16) of the New Radio (NR). As shown in the schematic diagram of the structure of the IAB system as shown in Fig. 1, an IAB node includes a distributed unit (DU) function part and a mobile device (Mobile Termination, MT) function part. Relying on MT, an access IAB node (i.e. IAB node) can find an upstream IAB node (i.e. parent IAB node) and establish a wireless connection with the DU that accesses the IAB node. This wireless connection is called a backhaul link (i.e. backhaul). link). After an IAB node establishes a complete backhaul link, the IAB node turns on its DU function, and the DU will provide cell services, that is, the DU can provide access services for the UE. A self-access backhaul loop also includes a host IAB node (that is, a donor IAB node), and the host IAB node has a wired transmission network directly connected.

Fig. 2 is a schematic structural diagram of a central unit-distributed unit (CU-DU) of an IAB system. In a self-access backhaul loop, the DUs of all IAB nodes are connected to a CU node. The CU node includes the CU control plane (ie CU-CP) and the CU user plane (ie CU-UP). The DU is configured through the F1-AP (ie F1 Application Protocol) protocol, and the MT is configured through the Radio Resource Control (RRC) protocol. The host IAB node has no MT function part. The IAB system was introduced to address the situation where the wired transmission network is not deployed when the access points are densely deployed, that is, when there is no wired transmission network, the access points can rely on wireless backhaul.

However, in the prior art, a time division multiplexing (TDM) method is adopted for the transmission and reception of the DU and the MT, and this multiplexing method will cause a relatively long delay for the IAB node to forward information. In order to reduce the time delay of IAB node forwarding information, DU and MT can adopt space division multiplexing (SDM) or frequency-division multiplexing (FDM) multiplexing methods. However, in DU and MT In the case of using the multiplexing mode of SDM or FDM for information transmission and reception, there is no relevant solution for how to use frequency domain resources for information transmission and reception.

Summary of the invention

The embodiments of the present invention provide a frequency domain resource processing method, a frequency domain resource configuration method, and related equipment to provide a frequency domain resource utilization mode when the DU and MT use SDM or FDM multiplexing mode, so as to reduce The interference between the DU and the MT or the interference between the DU and the MT can be known.

In order to solve the above technical problems, the present invention is implemented as follows:

In the first aspect, an embodiment of the present invention provides a frequency domain resource processing method, which is applied to an IAB node, and the method includes:

Acquiring frequency domain configuration information, where the frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node;

Information transmission is performed according to the frequency domain configuration information.

In the second aspect, an embodiment of the present invention also provides a frequency domain resource configuration method, which is applied to a first device, and the method includes:

Send frequency domain configuration information to the self-access backhaul IAB node;

The frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node.

In the third aspect, an embodiment of the present invention also provides a frequency domain resource processing method, which is applied to a first device, and the method includes:

Receive the configuration information of the guard band from the DU of the IAB node;

or

In the case where the guard band is configured in the DU of the IAB node, if there is an overlap between the frequency domain resources scheduled by the DU to the fourth device and the guard band, then rate matching or hitting is performed in the overlap part. hole.

In the fourth aspect, the embodiment of the present invention also provides an IAB node. The IAB node includes:

An obtaining module, configured to obtain frequency domain configuration information, where the frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node;

The transmission module is used for information transmission according to the frequency domain configuration information.

In the fifth aspect, an embodiment of the present invention also provides a first device. The first device includes:

The sending module is used to send frequency domain configuration information to the self-access backhaul IAB node;

In the sixth aspect, an embodiment of the present invention also provides a fourth device. The fourth device includes:

The transmission module is used to receive the configuration information of the guard band from the DU of the IAB node; or if the guard band is configured in the DU of the IAB node, if the DU is scheduled to the frequency domain resource of the fourth device and the protection If there are overlapping parts between frequency bands, rate matching or puncturing is performed in the overlapping parts.

In a seventh aspect, an embodiment of the present invention also provides an IAB node, including a processor, a memory, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor When realizing the steps of the frequency domain resource processing method provided in the first aspect above.

In an eighth aspect, an embodiment of the present invention also provides a first device, including a processor, a memory, and a computer program stored on the memory and running on the processor, and the computer program is executed by the processor. When executed, the steps of the frequency domain resource configuration method provided in the second aspect are implemented.

In a ninth aspect, an embodiment of the present invention also provides a fourth device, including a processor, a memory, and a computer program stored on the memory and running on the processor, and the computer program is executed by the processor. When executed, the steps of the frequency domain resource processing method provided in the third aspect are implemented.

In a tenth aspect, an embodiment of the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the frequency domain resource provided in the first aspect is realized The steps of the processing method either implement the steps of the frequency domain resource configuration method provided in the second aspect described above, or implement the steps of the frequency domain resource processing method provided in the third aspect described above.

In the embodiment of the present invention, by obtaining frequency domain configuration information, the frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node; according to The frequency domain configuration information for information transmission provides a way to use frequency domain resources when the DU and MT use the SDM or FDM multiplexing method, which can reduce the interference between the DU and the MT or realize the DU and MT. The interference of receiving and sending between MTs is known.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

Figure 1 is a schematic structural diagram of an IAB system provided by related technologies;

Figure 2 is a schematic structural diagram of a CU-DU of an AB system provided by related technologies;

Figure 3 is a structural diagram of a network system applicable to an embodiment of the present invention;

4 is a flowchart of a method for processing frequency domain resources according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a frequency domain resource type configuration provided by an embodiment of the present invention;

Figure 6 is a schematic diagram of an FDM resource configuration provided by an embodiment of the present invention;

FIG. 7 is a flowchart of a frequency domain resource configuration method provided by an embodiment of the present invention;

FIG. 8 is a flowchart of another frequency domain resource processing method provided by an embodiment of the present invention;

FIG. 9 is a structural diagram of an IAB node provided by an embodiment of the present invention;

FIG. 10 is a structural diagram of a first device according to an embodiment of the present invention;

FIG. 11 is a structural diagram of a fourth device provided by an embodiment of the present invention;

FIG. 12 is a structural diagram of another IAB node provided by an embodiment of the present invention;

Figure 13 is a structural diagram of another first device provided by an embodiment of the present invention;

Fig. 14 is a structural diagram of another fourth device provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein, for example, are implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment. In addition, the use of "and/or" in the description and claims means at least one of the connected objects, such as A and/or B and/or C, which means that it includes A alone, B alone, C alone, and both A and B. Exist, B and C exist, A and C exist, and A, B, and C all exist in 7 cases.

To facilitate understanding of the embodiments of the present invention, some related concepts involved in the embodiments of the present invention are first described.

Space Division Multiplexing (SDM)/Frequency-Division Multiplexing (FDM) multiplexing methods:

The multiplexing mode of the access link (namely access link) and the backhaul link (namely backhaul link) can be SDM or FDM. Using the FDM multiplexing method, a distributed unit (DU) and a mobile device (Mobile Termination, MT) can simultaneously send and receive on different frequency domain resources (that is, the same receiving or sending or one receiving and one sending). Using the SDM multiplexing method, DU and MT can transmit and receive on the same frequency domain resources at the same time (that is, the same receiving or transmitting or one receiving and one transmitting).

At this time, one of the DU and MT will be interfered by the other when receiving the signal. For example, when the DU receives the signal, it will be interfered by the MT sending or receiving signal; on the contrary, when the MT is receiving the signal, it will be interfered by the DU sending or receiving. Signal interference.

The duplexing mode of DU and MT:

The duplex mode between the DU and the MT of the IAB node is divided into half-duplex (that is, half-duplex) and full-duplex (full-duplex).

In the case of half-duplex, when one of the DU and MT is sending, the other cannot receive (and vice versa). Therefore, in the multiplexing mode of FDM or SDM, the transceiver operation modes of DU and MT can be as follows:

DU-TX&MT-TX, that is, DU is configured as Down Link (DL), and MT is configured as Up Link (UL);

DU-RX&MT-RX, that is, DU is configured as UL and MT is configured as DL.

In the case of full duplex, DU and MT can transmit and receive at the same time. Therefore, in the multiplexing mode of FDM or SDM, the transceiver operation modes of DU and MT can be as follows:

DU-TX&MT-TX, that is, DU is configured as DL and MT is configured as UL;

DU-RX&MT-RX, that is, DU is configured as UL and MT is configured as DL;

DU-TX&MT-RX, that is, DU is configured as DL and MT is configured as DL;

DU-RX&MT-TX, that is, DU is configured as UL and MT is configured as UL.

In addition, in the case of full duplex, DU-TX&MT-RX or DU-RX&MT-TX is more suitable for scenarios where DU and MT use different radio frequencies (RF)/panels (ie panels). It should be noted that in the embodiment of the present invention, DU and MT may also use different RF/panel.

Referring to Figure 3, Figure 3 is a structural diagram of a network system applicable to an embodiment of the present invention. As shown in Figure 3, it includes an IAB node 11, a first device 12, and a fourth device 13, where the IAB node 11 includes distributed Unit (Distributed Unit, DU) and mobile device (Mobile Termination, MT). The first device 12 may be a central unit (Centralized Unit, CU) or a parent node of the IAB node 11 (that is, the parent IAB node, which may also be referred to as an upstream IAB node). The fourth device 13 may be a user equipment (User Equipment, UE) scheduled by the IAB node 11 or an MT of a child IAB node of the IAB node 11 (ie, Child IAB node, which may also be referred to as a downstream IAB node).

It should be noted that a frequency domain resource processing method provided by an embodiment of the present invention may be executed by the above-mentioned IAB node 11; a frequency domain resource configuration method provided by an embodiment of the present invention may be executed by the above-mentioned first device 12. The provided another frequency domain resource processing method can be executed by the fourth device 13 described above. For details, please refer to the following description.

The embodiment of the present invention provides a frequency domain resource processing method, which is applied to an IAB node. Referring to FIG. 4, FIG. 4 is a flowchart of a frequency domain resource processing method provided by an embodiment of the present invention. As shown in FIG. 4, it includes the following steps:

Step 401: Acquire frequency domain configuration information, where the frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the DU of the IAB node.

In this embodiment, the configuration information of the guard band (that is, Guard band) may include the configuration information of the guard band of at least one of the DU and the MT, that is, the guard band may be configured in at least one of the DU and the MT.

Optionally, the frequency domain configuration information of the IAB node can be pre-defined by agreement; the frequency domain configuration information of the IAB node can also be configured by the CU or the parent node of the IAB node; the frequency domain configuration information of the IAB node can also be pre-defined in the protocol In addition, the frequency domain configuration information of the IAB node is also configured by the CU or the parent node of the IAB node.

Optionally, the above-mentioned frequency domain configuration information may be displayed and configured, for example, through RRC, F1-C, Downlink Control Information (DCI), or Media Access Control (MAC) control unit ( Signaling such as Control Element, CE) transmits the above frequency domain configuration information to the IAB node; it can also be implicitly configured, for example, the frequency domain resource of the DU of the IAB node and the frequency domain resource of the DU of the parent node of the IAB node are specified. The overlapping part of is the frequency domain resource of the shared resource type of the DU of the IAB node, or the frequency domain resource at the upper boundary of the frequency domain resource of the hard resource type or the soft resource type of the DU is specified as a guard band, etc.

It should be noted that the above-mentioned frequency domain configuration information may also include the configuration information of the frequency domain resources of the MT, which is not limited in this embodiment.

Step 402: Perform information transmission according to the frequency domain configuration information.

In this embodiment, by configuring at least one of the frequency domain resource and guard band of the DU, and performing information transmission according to at least one of the configured frequency domain resource and guard band of the DU, interference between the DU and the MT can be realized. It can be known to reduce or realize the interference between DU and MT to ensure the transmission quality of service (QoS).

Optionally, the foregoing step 401, that is, the obtaining frequency domain configuration information, may include at least one of the following:

Receiving frequency domain configuration information from the first device;

Obtain frequency domain configuration information predefined by the protocol.

In this embodiment, the foregoing first device may be a CU or a parent node of the foregoing IAB node.

In an embodiment, the IAB node can receive frequency domain configuration information from the first device, that is, configure the frequency domain through the first device, which can improve the flexibility of frequency domain configuration.

In another embodiment, the IAB node can obtain the frequency domain configuration information predefined by the protocol, that is, the frequency domain configuration is predefined by the protocol, which can save signaling and further save system resources.

In another embodiment, the IAB node may obtain frequency domain configuration information predefined by the protocol before obtaining frequency domain configuration information from the first device, and perform information transmission based on the frequency domain configuration information predetermined by the protocol. After obtaining the frequency domain configuration information, a device performs information transmission based on the frequency domain configuration information obtained from the first device, which can improve the reliability of data transmission and ensure the QoS of the transmission.

Optionally, the configuration information of the frequency domain resource of the DU includes the resource type of the frequency domain resource of the DU.

In this embodiment, the frequency domain resources of the aforementioned DU may be configured as at least one resource type. For example, the frequency domain resources of the above DU can be configured as hard resource type (i.e. Hard type), soft resource type (i.e. Soft type), unavailable resource type (i.e. NA type) and shared resource type (i.e. Shared type), etc. One or more. For example, as shown in FIG. 5, the DU is configured with Hard type frequency domain resources, Soft type frequency domain resources, Shared type frequency domain resources, and NA type frequency domain resources.

Optionally, the resource type of the frequency domain resource of the DU may include at least one of the following: a hard resource type, a soft resource type, an unavailable resource type, and a shared resource type.

Among them, the frequency domain resources of the aforementioned hard resource type can only be used by the DU; the frequency domain resources of the aforementioned soft resource type can only be used by the DU when it does not affect MT transmission and reception or are indicated as available; the frequency domain of the aforementioned unavailable resource type resources The resource cannot be used by the DU; the frequency domain resources of the aforementioned shared resource type can be used by the DU and the MT at the same time.

It should be noted that, in this embodiment, the frequency domain resources of the above one or more resource types can be configured for the DU in a display manner, or the frequency domain resources of the above one or more resource types can be configured for the DU in an implicit manner. Resources, this is not limited.

In this embodiment, the frequency domain resources of the above DU can be configured as one or more of hard resource type, soft resource type, unavailable resource type, and shared resource type, which can improve the flexibility of resource configuration and reduce DU. Interference between sending and receiving with MT.

Optionally, the method may further include:

Receiving first indication information from the first device;

The first indication information is used to indicate that frequency domain resources of the soft resource type in the frequency domain resources of the DU are used as frequency domain resources of the first type, and the first type includes at least one of the following: a hard resource type, The unavailable resource type is the shared resource type; the frequency domain resource of the shared resource type can be used by the mobile device MT of the DU and the IAB node at the same time, that is, the DU and MT can use the frequency domain resource together for transmission and reception.

Among them, for the frequency domain resources of the shared resource type, the transceiver operation modes of DU and MT may have at least one of the following:

DU-TX&MT-TX, that is, DU transmission, MT transmission;

DU-RX&MT-RX, namely DU receiving, MT sending;

DU-TX&MT-RX, that is, DU sends and MT receives;

DU-RX&MT-TX, that is, DU reception, MT reception.

In this embodiment, the foregoing first device may be a CU or a parent node of the foregoing IAB node. Optionally, the IAB node may receive the first indication information from the first device through DCI signaling.

For example, the above-mentioned first indication information may indicate that part or all of the frequency domain resources of the soft resource type in the frequency domain resources allocated to the DU are used as the frequency domain resources of the hard resource type, or indicate that the soft resource type of the frequency domain resources to be allocated to the DU is used. Part or all of the frequency domain resources are used as frequency domain resources of the unavailable resource type, or part or all of the frequency domain resources of the soft resource type in the frequency domain resources allocated to the DU are indicated as frequency domain resources of the shared resource type, or indicated to be allocated to In the frequency domain resources of the DU, part of the frequency domain resources of the soft resource type is used as frequency domain resources of the hard resource type, and the other part is used as frequency domain resources of the shared resource type.

In this embodiment, the first indication information indicates that the frequency domain resource of the soft resource type among the frequency domain resources of the DU is used as the frequency domain resource of the first type, so that flexible switching of the resource type of the frequency domain resource allocated to the DU can be realized.

Optionally, the configuration information of the frequency domain resource of the DU includes the resource location of the frequency domain resource of the DU.

In an embodiment, the resource location of the frequency domain resource of the DU may be configured in the form of a bitmap (ie, bitmap). For example, the value of the bit in the bitmap is 1 indicating that the corresponding frequency domain granularity is configured as the corresponding resource type. Otherwise, the starting position can be reference point A (ie reference point A), common resource block 0 (ie CRB0) , Physical resource block 0 (that is, PRB0) or synchronous signal block (Synchronous Signal Block, SSB) starting frequency, etc.

In another implementation manner, the resource location of the frequency domain resource of the DU may be configured in the form of offset (ie, offset) combined with bandwidth. For example, the offset can be for reference point A (ie reference point A), common resource block 0 (ie CRB0), physical resource block 0 (ie PRB0), or the start frequency of SSB, etc., and the bandwidth can be the number of corresponding frequency domain granularity .

Optionally, the above-mentioned offset and bandwidth may be separately configured for the frequency domain resources of each resource type; or the offset is a unified configuration for the frequency domain resources of the DU, and the bandwidth may be separately configured for the frequency domain resources of each resource type. For example, the frequency domain resources of each resource type can be pre-defined by agreement on continuous frequency domain resources, and the order of each resource type can be pre-defined or configured by agreement. The offset is a unified configuration for the frequency domain resources of the DU, and the bandwidth can be specified for each resource type. The frequency domain resources of each resource type are configured separately.

Optionally, the configuration granularity of the frequency domain resources of the DU is predefined by a protocol or configured by the first device.

In this embodiment, the foregoing configuration granularity may include, but is not limited to, one PBR, multiple PRBs, one sub-carrier (ie, sub-carrier), or multiple sub-carriers.

It should be noted that the configuration granularity of frequency domain resources of different resource types in the frequency domain resources of the DU may be the same or different. For example, the configuration granularity of the frequency domain resources of different resource types in the frequency domain resources of the DU may be 2 PRBs, or the configuration granularity of the frequency domain resources of the Hard type in the frequency domain resources of the DU may be 1 PRB, and the above DU The configuration granularity of the frequency domain resources of the Soft type in the frequency domain resources is 3 PRBs and so on.

Optionally, the second type of frequency domain resources in the frequency domain resources of the DU are periodic frequency domain resources;

Wherein, the second type includes at least one of the following: hard resource type, soft resource type, unavailable resource type, and shared resource type.

In this embodiment, one or more types of frequency domain resources in the frequency domain resources of the DU may be configured as periodic frequency domain resources, that is, frequency domain resources that appear periodically. Wherein, the time period of the aforementioned frequency domain resources may be represented by the sequence number of the time slot, the sequence number of the orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol, the time domain offset or the duration, etc.

For example, each type of frequency domain resources in the frequency domain resources of the DU can be configured to be periodic frequency domain resources, or some types of frequency domain resources in the frequency domain resources of the DU can be configured to be periodic frequency domain resources, etc. .

Optionally, the resource type of the overlapping resource between the frequency domain resource of the DU and the first frequency domain resource is a shared resource type;

The first frequency domain resource is the frequency domain resource of the DU of the parent node of the IAB node, and the frequency domain resource of the shared resource type can be used by the DU and the mobile device MT of the IAB node at the same time.

In this embodiment, the frequency domain resources of the shared resource type of the DU can be implicitly configured. For example, the frequency domain resources allocated to the DU of IAB node 1 (i.e. frequency domain configuration 1) and its parent IAB section (i.e. IAB node 2) are allocated in a time slot (i.e. Slot) or OFDM symbol (i.e. OFDM Symbol). The frequency domain resources of the DU (that is, frequency domain configuration 2) have overlapping parts, and the overlapping parts are frequency domain resources of the Shared type.

Optionally, if the CU notifies the frequency domain configuration 2 to the IAB node 1 and the frequency domain configuration 1 to the IAB node 2, then the two IAB nodes can determine the size of the overlapping part of the DU resources of the two.

In this embodiment, by implicitly configuring the resource type of the overlapping resource between the frequency domain resource of the DU and the first frequency domain resource as the shared resource type, signaling can be saved.

Optionally, the frequency domain resources of the shared resource type cannot be configured separately, and only the frequency domain resources of the soft resource type can be dynamically indicated as the frequency domain resources of the shared resource type.

Optionally, the configuration information of the frequency domain resources of the DU includes the maximum transmit power of at least one type of frequency domain resources in the frequency domain resources of the DU.

In this embodiment, the maximum transmit power may be configured for at least one type of frequency domain resources in the frequency domain resources of the DU. For example, the maximum transmission power can be configured for each type of frequency domain resources in the frequency domain resources of the DU; it is also possible to configure the maximum transmission power for only some types of frequency domain resources in the frequency domain resources of the DU, such as only the frequency domain resources of the DU. The frequency domain resource of Hard type, Shared type or Soft type in the domain resource is configured with the maximum transmit power.

Optionally, the maximum transmission power may be determined according to the maximum output power of the IAB node. For example, the maximum transmission power may be a ratio or an offset (ie Offset) relative to the maximum output power of the IAB node; It can also be a specific power value configured.

In this embodiment, by configuring the maximum transmit power of at least one type of frequency domain resources in the frequency domain resources of the DU, it is convenient to perform power control when information is transmitted according to the frequency domain resources of the DU.

Optionally, the resource type of the frequency domain resource carried in the first signaling among the frequency domain resources of the DU is a hard resource type;

The first signaling includes at least one of the following: SSB, Physical Downlink Shared Channel (PDCCH), and Channel State Information Reference Signal (CSI-RS).

In this embodiment, the frequency domain resources of some special signaling transmissions may be pre-defined by the parent node configuration or protocol of the CU or IAB node to be the frequency domain resources of the Hard type of the DU, so that the frequency domain resources of the hard resource type used for the DU can be saved. Signaling and resources for domain resource configuration.

Optionally, the method may further include:

Sending desired frequency domain resource parameters to the first device;

Wherein, the frequency domain resource parameter includes at least one of the following: resource type, bandwidth, and frequency domain location.

In this embodiment, the IAB node may report the frequency domain resource parameter that it expects to be configured to the first device, so that the first device may configure the frequency domain resource for the DU according to the frequency domain resource parameter reported by the first device. Wherein, the above-mentioned first device may be the parent node of the CU or IAB node.

In this embodiment, the IAB node sends the desired frequency domain resource parameters to the first device, so that the first device can configure frequency domain resources for the DU according to the frequency domain resource parameters reported by the IAB node, which can improve the frequency domain resource configuration of the DU. accuracy.

Optionally, the configuration information of the guard band includes at least one of the following: the bandwidth of the guard band, and the position of the guard band.

In this embodiment, the bandwidth of the guard band may be one subcarrier (ie, subcarrier), multiple subcarriers, one PRB or multiple PRBs, etc., or it may be an absolute bandwidth.

It should be noted that the bandwidth of the guard band and the position of the guard band may be predefined by the protocol, or may be configured by the first device. Wherein, in the case where the position of the guard band is configured by the first device, the following two implementation manners may be included:

In an embodiment, the position of the guard band may be a display configuration. For example, the position of the guard band may be configured in the form of a configuration offset (ie, Offset). The offset may be for the reference point A, CRB0, PRB0, or SSB starting frequency point. .

In another embodiment, the position of the guard band described above may be implicitly configured. For example, the position of the guard band may be determined according to the position of the frequency domain resource of the second device, where the second device is a device in the IAB node where the guard band is configured.

Optionally, the position of the guard band may include at least one of the following:

The upper boundary of the frequency domain resource of the second device;

The lower boundary of the frequency domain resource of the second device;

The frequency domain position adjacent to the upper boundary of the frequency domain resource of the second device;

A frequency domain position adjacent to the lower boundary of the frequency domain resource of the second device;

The boundary with the smallest frequency domain distance between the frequency domain resources of the second device and the frequency domain resources of the third device, where the third device is a device other than the second device in the IAB node;

Wherein, the second device is a device configured with the guard band in the IAB node.

In this embodiment, the above-mentioned second device may be the DU or MT of the IAB node.

Specifically, in the case where the guard band is configured in the DU in the IAB node, the position of the guard band may include at least one of the following: the upper boundary of the frequency domain resource of the DU; the lower boundary of the frequency domain resource of the DU; the frequency domain of the DU The frequency domain location adjacent to the upper boundary of the resource; the frequency domain location adjacent to the lower boundary of the frequency domain resource of the DU; the boundary with the smallest frequency domain distance between the frequency domain resources of the DU and the frequency domain resources of the MT.

For example, in the case where the guard band is configured in the DU in the IAB node, the position of the guard band may be located at the upper boundary of the Hard-type or Soft-type frequency domain resources in the frequency domain resources of the DU, or the position of the guard band may be located in the DU. The lower boundary of the Hard type or Soft type frequency domain resource in the frequency domain resource, or the position of the guard band may be located in the frequency domain position adjacent to the upper boundary of the Hard type or Soft type frequency domain resource in the DU frequency domain resource, or protection The position of the frequency band may be located in the frequency domain position adjacent to the upper boundary of the Hard type or Soft type frequency domain resource in the frequency domain resource of the DU.

In the case where the guard band is configured for the MT in the IAB node, the position of the guard band may include at least one of the following: the upper boundary of the frequency domain resources of the MT; the lower boundary of the frequency domain resources of the MT; the upper boundary of the frequency domain resources of the MT Adjacent frequency domain location; the frequency domain location adjacent to the lower boundary of the frequency domain resource of the MT; the boundary with the smallest frequency domain distance between the frequency domain resource of the MT and the frequency domain resource of the DU.

In this embodiment, by implicitly configuring the position of the guard band, the signaling and resources used for the position configuration of the guard band can be saved.

Optionally, the method may further include:

In the case where the guard band is configured in the MT in the IAB node, if there is an overlap between the frequency domain resource scheduled by the MT and the guard band, the MT performs a rate on the overlap Match or punch.

In this embodiment, when the guard band is configured in the MT, if there is an overlap between the frequency domain resources scheduled by the MT and the guard band, the MT performs rate-matching on the overlap (that is, rate-matchig) Or puncturing.

Optionally, in this embodiment, when the guard band is at least one subcarrier, if there is an overlap between the frequency domain resource scheduled by the MT and the guard band, the MT performs rate matching on the overlap.

In this embodiment, the MT is used to perform rate matching or puncturing on the overlapped portion to improve the utilization rate of frequency resources.

Optionally, the method may further include:

In a case where the guard band is configured in the DU in the IAB node, sending the guard band configuration information to the fourth device scheduled by the DU.

In this embodiment, the foregoing fourth device may be a user equipment (User Equipment, UE) or an MT of a child node of the foregoing IAB node (ie, Child IAB node, which may also be referred to as a downstream IAB node). In the case that the guard band is configured in the DU, the DU can send the configuration information of the guard band to the fourth device scheduled by the DU. For example, the DU can use RRC messages (such as System Information Block (SIB) messages or UE-specific RRC ( That is, the UE-specific RRC message) etc. send the configuration information of the guard band to the fourth device.

Optionally, the method may further include:

Sending the desired guard band parameters to the first device;

Wherein, the guard band parameter includes at least one of the following: the bandwidth of the guard band, and the frequency domain position of the guard band.

In this embodiment, the guard band can be reported as a capability of the IAB node to the first device, such as the CU or the parent node of the IAB node. The first device can configure the FDM frequency according to the received guard band parameters reported by the IAB node. resource.

Optionally, the size of a default guard band can be pre-defined by agreement. In the case that the first device does not obtain the guard band capability of the IAB node, the first device can reserve at least no less than the default protection when configuring FDM frequency resources. Frequency resource of the size of the frequency band.

Optionally, the frequency domain configuration information may be determined according to the desired guard band parameters, or determined according to the guard band parameters predefined by the protocol.

Optionally, in the case that the frequency domain configuration information only includes the configuration information of the guard band, the first side of the guard band is the frequency domain resource of the DU of the IAB node, and the second side of the guard band Is the frequency domain resource of the MT of the IAB node.

In this embodiment, the configuration information of the guard band can be configured only for the IAB node, and the frequency domain resource on one side of the guard band is pre-defined or configured by the agreement as the frequency domain resource of the DU, and the frequency domain resource on the other side of the guard band is Frequency domain resources of MT.

Optionally, the frequency domain resources of the IAB node and the frequency domain resources of the parent node of the IAB node are frequency domain resources allocated according to a first allocation direction;

Wherein, the first allocation direction is predefined by a protocol or configured by the first device.

In this embodiment, FDM frequency domain resources can be allocated in accordance with the allocation direction predefined or configured by the protocol. For example, as shown in Fig. 6, the resources allocated by the parent node are allocated downward from the upper boundary, and resources allocated by the child node are allocated upward from the lower boundary. This can maximize the airspace resources in the middle and reduce mutual interference.

Optionally, in the case that the frequency domain configuration information also includes the configuration information of the frequency domain resources of the MT of the IAB node, the configuration information of the frequency domain resources of the MT may also be predefined by the protocol, or may be It is configured by the first device.

Optionally, the configuration granularity of the frequency domain resources of the MT may also be predefined by the protocol, or may be configured by the first device. Wherein, the configuration granularity of the frequency domain resources of the MT may include, but is not limited to, one PBR, multiple PRBs, one sub-carrier (ie, sub-carrier), or multiple sub-carriers.

Optionally, the resource location of the frequency domain resource of the MT may be configured in the form of a bitmap, or the resource location of the frequency domain resource of the MT may be configured in the form of an offset (ie, offset) combined with bandwidth.

In summary, the frequency domain resource configuration mode and guard band configuration mode of the DU provided in the embodiments of the present invention can realize interference suppression or realize interference-aware scheduling, and can improve frequency reuse efficiency and service QoS. Specifically, when the DU and the MT are used for information transmission through the FDM multiplexing mode, the interference between the DU and the MT can be reduced through a reasonable frequency domain resource configuration and/or guard band configuration of the DU. In the case that the DU and the MT perform information transmission through the multiplexing mode of SDM, the DU can be notified of its interfered frequency domain resources by way of frequency domain configuration, thereby assisting DU scheduling.

The embodiment of the present invention also provides a frequency domain resource configuration method, which is applied to the first device. Referring to FIG. 7, FIG. 7 is a flowchart of a frequency domain resource configuration method provided by an embodiment of the present invention. As shown in FIG. 7, it includes the following steps:

Step 701: Send frequency domain configuration information to the self-access backhaul IAB node;

In this embodiment, the above-mentioned first device may be the parent node of the CU or the IAB node. The configuration information of the guard band (that is, the Guard band) may include the configuration information of the guard band of at least one of the DU and the MT, that is, the guard band may be configured in at least one of the DU and the MT.

Optionally, the above frequency domain configuration information may be displayed configuration, for example, the above frequency domain configuration information may be transmitted to the IAB node through RRC, F1-C, DCI, or MAC CE signaling; it may also be implicitly configured. For example, it is specified that the overlapping part of the frequency domain resource of the DU of the IAB node and the frequency domain resource of the DU of the parent node of the IAB node is the frequency domain resource of the shared resource type of the DU of the IAB node, or the hard resource type or soft resource type of the DU is specified. The frequency domain resources at the upper boundary of the frequency domain resources of the resource type are guard bands and the like.

In the embodiment of the present invention, at least one of the frequency domain resource and guard band of the DU is configured for the IAB node through the first device, so that the IAB node can perform information according to at least one of the configured frequency domain resource and guard band of the DU Transmission can reduce the interference between the DU and the MT or realize the interference between the DU and the MT, so as to ensure the QoS of the transmission.

Optionally, the resource type includes at least one of the following: hard resource type, soft resource type, unavailable resource type, and shared resource type;

Wherein, the frequency domain resources of the shared resource type can be used by the DU and the mobile equipment MT of the IAB node at the same time.

Optionally, the method further includes:

Sending first indication information to the IAB node;

The first indication information is used to indicate that frequency domain resources of the soft resource type in the frequency domain resources of the DU are used as frequency domain resources of the first type, and the first type includes at least one of the following: a hard resource type, The unavailable resource type is a shared resource type; the frequency domain resources of the shared resource type can be used by the DU and the mobile device MT of the IAB node at the same time.

Wherein, the first signaling includes at least one of the following: a synchronization signal block SSB, a physical downlink control channel PDCCH, and a channel state information reference signal CSI-RS.

Optionally, the method further includes:

Receiving desired frequency domain resource parameters from the IAB node;

Optionally, the position of the guard band includes at least one of the following:

The upper boundary of the frequency domain resource of the second device;

The lower boundary of the frequency domain resource of the second device;

Optionally, the method further includes:

Receiving desired guard band parameters from the IAB node;

The embodiment of the present invention also provides a frequency domain resource processing method, which is applied to the fourth device. Referring to FIG. 8, FIG. 8 is a flowchart of another frequency domain resource configuration method provided by an embodiment of the present invention. As shown in FIG. 8, it includes the following steps:

Step 801: Receive the configuration information of the guard band from the DU of the IAB node, or if the guard band is configured in the DU of the IAB node, if the DU is scheduled to the frequency domain resource of the fourth device and the guard band If there is an overlapping part, rate matching or puncturing is performed in the overlapping part.

In this embodiment, the foregoing fourth device may be a UE or an MT of a child node of the foregoing IAB node (that is, Child IAB node, which may also be referred to as a downstream IAB node).

Specifically, in the case that the guard band is configured in the DU, the DU may send the guard band configuration information to the fourth device scheduled by the DU, and the fourth device may receive the guard band configuration information from the DU, so that the fourth device can rely on the configuration information of the guard band. The configuration information of the guard band is used for information transmission.

In the case where the guard band is configured in the DU of the IAB node, if there is an overlap between the frequency domain resources scheduled by the DU to the fourth device and the guard band, the first device may perform the operation in the overlap portion. Rate matching or puncturing to improve frequency resource utilization.

Refer to FIG. 9, which is a structural diagram of an IAB node provided by an embodiment of the present invention. As shown in FIG. 9, the IAB node 900 includes:

The obtaining module 901 is configured to obtain frequency domain configuration information, where the frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node;

The transmission module 902 is configured to perform information transmission according to the frequency domain configuration information.

Optionally, the acquiring module is specifically used for at least one of the following:

Receiving frequency domain configuration information from the first device;

Obtain frequency domain configuration information predefined by the protocol.

Optionally, the IAB node further includes:

A receiving module, configured to receive first indication information from the first device;

Optionally, the IAB node further includes:

The first sending module is configured to send desired frequency domain resource parameters to the first device;

The upper boundary of the frequency domain resource of the second device;

The lower boundary of the frequency domain resource of the second device;

Optionally, the IAB node further includes:

MT is used to perform operations on the overlapping part if there is an overlap between the frequency domain resources scheduled by the MT and the guard band when the guard band is configured in the MT in the IAB node Rate matching or punching.

Optionally, the IAB node further includes:

The DU is used to send configuration information of the guard band to the fourth device scheduled by the DU when the guard band is configured in the DU in the IAB node.

Optionally, the IAB node further includes:

The second sending module is configured to send the desired guard band parameters to the first device;

The IAB node 900 provided in the embodiment of the present invention can implement each process implemented by the IAB node in the foregoing method embodiment. To avoid repetition, details are not described herein again.

In the IAB node 900 in the embodiment of the present invention, the obtaining module 901 is configured to obtain frequency domain configuration information, where the frequency domain configuration information includes guard band configuration information and frequency domain resource information of the distribution unit DU of the IAB node. At least one item of configuration information; a transmission module 902, configured to perform information transmission according to the frequency domain configuration information. Provides a way to use frequency domain resources when the DU and MT use the multiplexing mode of SDM or FDM, which can reduce the interference between the transmission and reception between the DU and the MT or realize the interference between the transmission and reception between the DU and the MT.

Refer to FIG. 10, which is a structural diagram of a first device according to an embodiment of the present invention. As shown in FIG. 10, the first device 1000 includes:

The sending module 1001 is used to send frequency domain configuration information to the IAB node;

The first device 1000 provided in the embodiment of the present invention can implement each process implemented by the first device in the foregoing method embodiment. To avoid repetition, details are not described herein again.

In the first device 1000 of the embodiment of the present invention, the sending module 1001 is configured to send frequency domain configuration information to an IAB node; wherein the frequency domain configuration information includes guard band configuration information and the distribution unit DU of the IAB node At least one item of configuration information of frequency domain resources. The first device configures at least one of the frequency domain resource and guard band of the DU for the IAB node, so that the IAB node can perform information transmission according to at least one of the frequency domain resource and guard band of the configured DU, and the DU and The reduction of interference between MTs or the realization of interference between DU and MT can be known to ensure the QoS of transmission.

Refer to FIG. 11, which is a structural diagram of a fourth device according to an embodiment of the present invention. As shown in FIG. 11, the fourth device 1100 includes:

The transmission module 1101 is configured to receive the configuration information of the guard band from the DU of the IAB node, or, if the guard band is configured in the DU of the IAB node, if the DU is scheduled to the fourth device and the frequency domain resource and all If there is an overlapping part between the guard bands, rate matching or puncturing is performed in the overlapping part.

The fourth device 1100 provided in the embodiment of the present invention can implement each process implemented by the fourth device in the foregoing method embodiment. To avoid repetition, details are not described herein again.

In the fourth device 1100 of the embodiment of the present invention, the transmission module 1101 is configured to receive configuration information of the guard band from the DU of the IAB node, or, if the guard band is configured in the DU of the IAB node, if the DU is scheduled to If there is an overlapping part between the frequency domain resource of the fourth device and the guard band, rate matching or puncturing is performed in the overlapping part. By receiving the configuration information of the guard band from the DU, it is convenient for the fourth device to perform information transmission according to the configuration information of the guard band, and by performing rate matching or puncturing in the overlapping part, the frequency resource utilization rate can be improved.

Refer to FIG. 12, which is a structural diagram of another IAB node provided by an embodiment of the present invention. As shown in FIG. 12, the IAB node 1200 includes a processor 1201, a memory 1202, a bus interface 1203, and a transceiver 1204. The processor 1201, the memory 1202, and the transceiver 1204 are all connected to the bus interface 1203.

Wherein, in the embodiment of the present invention, the IAB node 1200 further includes: a computer program stored on the memory 1202 and running on the processor 1201.

In the embodiment of the present invention, the transceiver 1204 is used to:

It should be understood that, in this embodiment, the above-mentioned processor 1201 and transceiver 1204 can implement each process implemented by the IAB node in the above-mentioned method embodiment. To avoid repetition, details are not described herein again.

Refer to FIG. 13, which is a structural diagram of another first device according to an embodiment of the present invention. As shown in FIG. 13, the first device 1300 includes: a processor 1301, a memory 1302, a bus interface 1303, and a transceiver 1304, wherein the processor 1301, the memory 1302, and the transceiver 1304 are all connected to the bus interface 1303.

Wherein, in the embodiment of the present invention, the first device 1300 further includes: a computer program that is stored in the memory 1302 and can be run on the processor 1301.

In the embodiment of the present invention, the transceiver 1304 is used to:

Fig. 14 is a structural diagram of another fourth device provided by an embodiment of the present invention. Referring to FIG. 14, the fourth device 1400 includes but is not limited to: a radio frequency unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409, Processor 1410, power supply 1411 and other components. Those skilled in the art can understand that the structure of the fourth device shown in FIG. 14 does not constitute a limitation on the fourth device, and the fourth device may include more or fewer components than those shown in the figure, or combine certain components, or Different component arrangements. In the embodiment of the present invention, the fourth device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.

Wherein, the radio frequency unit 1401 is configured to receive the configuration information of the guard band from the DU of the IAB node; or if the guard band is configured in the DU of the IAB node, if the frequency domain resource scheduled by the DU to the fourth device is the same as If there is an overlapping part between the guard bands, rate matching or puncturing is performed in the overlapping part.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 1401 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the base station, it is processed by the processor 1410; Uplink data is sent to the base station. Generally, the radio frequency unit 1401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1401 can also communicate with the network and other devices through a wireless communication system.

The fourth device provides users with wireless broadband Internet access through the network module 1402, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 1403 may convert the audio data received by the radio frequency unit 1401 or the network module 1402 or stored in the memory 1409 into audio signals and output them as sounds. Moreover, the audio output unit 1403 may also provide audio output related to a specific function performed by the fourth device 1400 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 1403 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1404 is used to receive audio or video signals. The input unit 1404 may include a graphics processing unit (GPU) 14041 and a microphone 14042. The graphics processor 14041 is configured to respond to images of still pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. Data is processed. The processed image frame can be displayed on the display unit 1406. The image frame processed by the graphics processor 14041 may be stored in the memory 1409 (or other storage medium) or sent via the radio frequency unit 1401 or the network module 1402. The microphone 14042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 1401 for output in the case of a telephone call mode.

The fourth device 1400 further includes at least one sensor 1405, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 14061 according to the brightness of the ambient light. The proximity sensor can close the display panel 14061 when the fourth device 1400 is moved to the ear. And/or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the fourth device posture (such as horizontal and vertical screen switching, related Games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensors 1405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, and thermometers , Infrared sensors, etc., I won’t repeat them here.

The display unit 1406 is used to display information input by the user or information provided to the user. The display unit 1406 may include a display panel 14061, and the display panel 14061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

The user input unit 1407 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the fourth device. Specifically, the user input unit 1407 includes a touch panel 14071 and other input devices 14072. The touch panel 14071, also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 14071 or near the touch panel 14071. operate). The touch panel 14071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 1410, the command sent by the processor 1410 is received and executed. In addition, the touch panel 14071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 14071, the user input unit 1407 may also include other input devices 14072. Specifically, other input devices 14072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

Further, the touch panel 14071 can cover the display panel 14061. When the touch panel 14071 detects a touch operation on or near it, it transmits it to the processor 1410 to determine the type of the touch event, and then the processor 1410 determines the type of the touch event according to the touch. The type of event provides corresponding visual output on the display panel 14061. Although in FIG. 14, the touch panel 14071 and the display panel 14061 are used as two independent components to implement the input and output functions of the fourth device, in some embodiments, the touch panel 14071 and the display panel 14061 may be combined. It is integrated to realize the input and output functions of the fourth device, which is not specifically limited here.

The interface unit 1408 is an interface for connecting an external device and the fourth device 1400. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 1408 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the fourth device 1400 or can be used to connect to the fourth device 1400. Transfer data between and external devices.

The memory 1409 can be used to store software programs and various data. The memory 1409 may mainly include a storage program area and a storage data area. The storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc. In addition, the memory 1409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 1410 is the control center of the fourth device. It uses various interfaces and lines to connect the various parts of the entire fourth device, runs or executes software programs and/or modules stored in the memory 1409, and calls and stores them in the memory 1409. Execute various functions and process data of the fourth device, so as to monitor the fourth device as a whole. The processor 1410 may include one or more processing units; preferably, the processor 1410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc., the modem The processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1410.

The fourth device 1400 may also include a power supply 1411 (such as a battery) for supplying power to various components. Preferably, the power supply 1411 may be logically connected to the processor 1410 through a power management system, so that the power management system can manage charging, discharging, and power consumption. Management and other functions.

In addition, the fourth device 1400 includes some functional modules not shown, which will not be repeated here.

Preferably, the embodiment of the present invention further provides a fourth device, including a processor 1410, a memory 1409, a computer program stored in the memory 1409 and running on the processor 1410, and the computer program is executed by the processor 1410 Each process of the foregoing frequency domain resource processing method embodiment can be realized at a time, and the same technical effect can be achieved. In order to avoid repetition, it will not be repeated here.

The embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the foregoing frequency domain resource processing method embodiment is implemented, or the foregoing frequency domain resource processing method is implemented. Each process of the embodiment of the domain resource configuration method can achieve the same technical effect, and in order to avoid repetition, it will not be repeated here. Wherein, the computer-readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment method can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present invention.

The embodiments of the present invention are described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present invention, many forms can be made without departing from the purpose of the present invention and the scope of protection of the claims, and they all fall within the protection of the present invention.

Claims

A frequency domain resource processing method, applied to an IAB node, includes:

Acquiring frequency domain configuration information, where the frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node;

Information transmission is performed according to the frequency domain configuration information.
The method according to claim 1, wherein said obtaining frequency domain configuration information includes at least one of the following:

Receiving frequency domain configuration information from the first device;

Obtain frequency domain configuration information predefined by the protocol.
The method according to claim 1, wherein the configuration information of the frequency domain resource of the DU includes a resource type of the frequency domain resource of the DU.
The method according to claim 3, wherein the resource type includes at least one of the following: a hard resource type, a soft resource type, an unavailable resource type, and a shared resource type;

Wherein, the frequency domain resources of the shared resource type can be used by the DU and the mobile equipment MT of the IAB node at the same time.
The method according to claim 1, further comprising:

Receiving first indication information from the first device;

The first indication information is used to indicate that frequency domain resources of the soft resource type in the frequency domain resources of the DU are used as frequency domain resources of the first type, and the first type includes at least one of the following: a hard resource type, The unavailable resource type is a shared resource type; the frequency domain resources of the shared resource type can be used by the DU and the mobile device MT of the IAB node at the same time.
The method according to claim 1, wherein the configuration information of the frequency domain resources of the DU includes resource locations of the frequency domain resources of the DU.
The method according to claim 1, wherein the configuration granularity of the frequency domain resources of the DU is predefined by a protocol or configured by the first device.
The method according to claim 1, wherein the second type of frequency domain resources in the frequency domain resources of the DU are periodic frequency domain resources;

Wherein, the second type includes at least one of the following: hard resource type, soft resource type, unavailable resource type, and shared resource type.
The method according to claim 1, wherein the resource type of the overlapping resource between the frequency domain resource of the DU and the first frequency domain resource is a shared resource type;

The first frequency domain resource is the frequency domain resource of the DU of the parent node of the IAB node, and the frequency domain resource of the shared resource type can be used by the DU and the mobile device MT of the IAB node at the same time.
The method according to claim 1, wherein the configuration information of the frequency domain resources of the DU includes the maximum transmission power of at least one type of frequency domain resources in the frequency domain resources of the DU.
The method according to claim 1, wherein the resource type of the frequency domain resource carried in the first signaling among the frequency domain resources of the DU is a hard resource type;

Wherein, the first signaling includes at least one of the following: a synchronization signal block SSB, a physical downlink control channel PDCCH, and a channel state information reference signal CSI-RS.
The method according to claim 1, further comprising:

Sending desired frequency domain resource parameters to the first device;

Wherein, the frequency domain resource parameter includes at least one of the following: resource type, bandwidth, and frequency domain location.
The method according to claim 1, wherein the configuration information of the guard band includes at least one of the following: a bandwidth of the guard band, and a position of the guard band.
The method according to claim 13, wherein the position of the guard band includes at least one of the following:

The upper boundary of the frequency domain resource of the second device;

The lower boundary of the frequency domain resource of the second device;

The frequency domain position adjacent to the upper boundary of the frequency domain resource of the second device;

A frequency domain position adjacent to the lower boundary of the frequency domain resource of the second device;

The boundary with the smallest frequency domain distance between the frequency domain resources of the second device and the frequency domain resources of the third device, where the third device is a device other than the second device in the IAB node;

Wherein, the second device is a device configured with the guard band in the IAB node.
The method according to claim 1, further comprising:

In the case where the guard band is configured in the MT in the IAB node, if there is an overlap between the frequency domain resources scheduled by the MT and the guard band, the MT performs a rate on the overlap Match or punch.
The method according to claim 1, further comprising:

In a case where the guard band is configured in the DU in the IAB node, sending the guard band configuration information to the fourth device scheduled by the DU.
The method according to claim 1, further comprising:

Sending the desired guard band parameters to the first device;

Wherein, the guard band parameter includes at least one of the following: the bandwidth of the guard band, and the frequency domain position of the guard band.
The method according to claim 1, wherein, in the case that the frequency domain configuration information only includes the configuration information of the guard band, the first side of the guard band is the frequency domain resource of the DU of the IAB node, so The second side of the guard band is the frequency domain resource of the MT of the IAB node.
The method according to claim 1, wherein the frequency domain resources of the IAB node and the frequency domain resources of the parent node of the IAB node are frequency domain resources allocated according to a first allocation direction;

Wherein, the first allocation direction is predefined by a protocol or configured by the first device.
A frequency domain resource configuration method, applied to a first device, includes:

Send frequency domain configuration information to the self-access backhaul IAB node;

The frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node.
A frequency domain resource processing method, applied to a fourth device, includes:

Receive the configuration information of the guard band from the DU of the IAB node;

or

In the case where the guard band is configured in the DU of the IAB node, if there is an overlap between the frequency domain resources scheduled by the DU to the fourth device and the guard band, then rate matching or hitting is performed in the overlap part. hole.
An IAB node, including:

An obtaining module, configured to obtain frequency domain configuration information, where the frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node;

The transmission module is used for information transmission according to the frequency domain configuration information.
The IAB node according to claim 22, wherein the obtaining module is further used for at least one of the following:

Receiving frequency domain configuration information from the first device;

Obtain frequency domain configuration information predefined by the protocol.
The IAB node according to claim 22, wherein the configuration information of the frequency domain resource of the DU includes a resource type of the frequency domain resource of the DU.
The IAB node according to claim 24, wherein the resource type includes at least one of the following: a hard resource type, a soft resource type, an unavailable resource type, and a shared resource type;

Wherein, the frequency domain resources of the shared resource type can be used by the DU and the mobile equipment MT of the IAB node at the same time.
The IAB node according to claim 22, further comprising:

A receiving module, configured to receive first indication information from the first device;

The first indication information is used to indicate that frequency domain resources of the soft resource type in the frequency domain resources of the DU are used as frequency domain resources of the first type, and the first type includes at least one of the following: a hard resource type, The unavailable resource type is a shared resource type; the frequency domain resources of the shared resource type can be used by the DU and the mobile device MT of the IAB node at the same time.
The IAB node according to claim 22, wherein the configuration information of the frequency domain resource of the DU includes the resource location of the frequency domain resource of the DU.
The IAB node according to claim 22, wherein the configuration granularity of the frequency domain resources of the DU is predefined by a protocol or configured by the first device.
The IAB node according to claim 22, wherein the second type of frequency domain resources in the frequency domain resources of the DU are periodic frequency domain resources;

Wherein, the second type includes at least one of the following: hard resource type, soft resource type, unavailable resource type, and shared resource type.
The IAB node according to claim 22, wherein the resource type of the overlapping resource between the frequency domain resource of the DU and the first frequency domain resource is a shared resource type;

The first frequency domain resource is the frequency domain resource of the DU of the parent node of the IAB node, and the frequency domain resource of the shared resource type can be used by the DU and the mobile device MT of the IAB node at the same time.
The IAB node according to claim 22, wherein the configuration information of the frequency domain resources of the DU includes the maximum transmission power of at least one type of frequency domain resources in the frequency domain resources of the DU.
The IAB node according to claim 22, wherein the resource type of the frequency domain resource carried in the first signaling among the frequency domain resources of the DU is a hard resource type;

Wherein, the first signaling includes at least one of the following: a synchronization signal block SSB, a physical downlink control channel PDCCH, and a channel state information reference signal CSI-RS.
The IAB node according to claim 22, further comprising:

The first sending module is configured to send desired frequency domain resource parameters to the first device;

Wherein, the frequency domain resource parameter includes at least one of the following: resource type, bandwidth, and frequency domain location.
The IAB node according to claim 22, wherein the configuration information of the guard band includes at least one of the following: a bandwidth of the guard band, and a position of the guard band.
The IAB node according to claim 34, wherein the position of the guard band includes at least one of the following:

The upper boundary of the frequency domain resource of the second device;

The lower boundary of the frequency domain resource of the second device;

The frequency domain position adjacent to the upper boundary of the frequency domain resource of the second device;

A frequency domain position adjacent to the lower boundary of the frequency domain resource of the second device;

The boundary with the smallest frequency domain distance between the frequency domain resources of the second device and the frequency domain resources of the third device, where the third device is a device other than the second device in the IAB node;

Wherein, the second device is a device configured with the guard band in the IAB node.
The IAB node according to claim 22, further comprising:

MT is used to perform operations on the overlapping part if there is an overlap between the frequency domain resources scheduled by the MT and the guard band when the guard band is configured in the MT in the IAB node Rate matching or punching.
The IAB node according to claim 22, further comprising:

The DU is used to send configuration information of the guard band to the fourth device scheduled by the DU when the guard band is configured in the DU in the IAB node.
The IAB node according to claim 22, further comprising:

The second sending module is configured to send the desired guard band parameters to the first device;

Wherein, the guard band parameter includes at least one of the following: the bandwidth of the guard band, and the frequency domain position of the guard band.
The IAB node according to claim 22, wherein, in the case that the frequency domain configuration information only includes configuration information of a guard band, the first side of the guard band is the frequency domain resource of the DU of the IAB node, The second side of the guard band is the frequency domain resource of the MT of the IAB node.
The IAB node according to claim 22, wherein the frequency domain resources of the IAB node and the frequency domain resources of the parent node of the IAB node are frequency domain resources allocated according to a first allocation direction;

Wherein, the first allocation direction is predefined by a protocol or configured by the first device.
A first device, including:

The sending module is used to send frequency domain configuration information to the self-access backhaul IAB node;

The frequency domain configuration information includes at least one of guard band configuration information and frequency domain resource configuration information of the distribution unit DU of the IAB node.
A fourth device, including:

The transmission module is used to receive the configuration information of the guard band from the DU of the IAB node; or if the guard band is configured in the DU of the IAB node, if the DU is scheduled to the frequency domain resource of the fourth device and the protection If there are overlapping parts between frequency bands, rate matching or puncturing is performed in the overlapping parts.
An IAB node comprising a processor, a memory, and a computer program stored on the memory and capable of running on the processor. The computer program is executed by the processor to implement any of claims 1 to 19 One of the steps of the frequency domain resource processing method.
A first device, comprising a processor, a memory, and a computer program stored on the memory and capable of running on the processor, the computer program being executed by the processor to implement the method described in claim 20 The steps of the frequency domain resource allocation method.
A fourth device, comprising a processor, a memory, and a computer program stored on the memory and capable of running on the processor, the computer program being executed by the processor to implement the method described in claim 21 The steps of the frequency domain resource processing method.
A computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method for processing frequency domain resources according to any one of claims 1 to 19 is implemented Steps, either implementing the steps of the frequency domain resource configuration method according to claim 20, or implementing the steps of the frequency domain resource processing method according to claim 21.
A computer program product, which is executed by at least one processor to implement the frequency domain resource processing method according to any one of claims 1-21.
An IAB node for executing the frequency domain resource processing method according to any one of claims 1-19.
A first device for executing the frequency domain resource processing method according to claim 20.
A fourth device for executing the frequency domain resource processing method according to claim 21.